Highway snowplow



Aug. 16, 1932. 'c. MlLl-[QN 1,872,484

HIGHWAY SNOWPLOW Filed April 11. 1930 2 Sheets-Sheet 1 Aug. 16, 1932.

C. A. MILHON HIGHWAY SNOWPLOW Filed April 11, 1930 2 Sheets-Sheet 2 PER M O/P/VE Y ated with a tractor or Patented Aug. 16, 1932 PATENT OFFiCETI CHARLES A. Minion, or GARFIELD, KANSAS HVIGFHWAYY SNOWPLOW Application filed A ril 11,

This invention relates to an improved highway snow plow and has for one of .its principal objects the provision of such a plow particularly adapted tobe the like, andwherein the tractor operates inside the plow.

v On of theimportant objects of this invention is to provide a tractor operated liigh way snow plow which can be readily and economically driven or propelled by means of an ordinary tractor and so constructed that the plow itself hitches to the tractordraw bar and has guide chains to be attached to the front of the tractor at about the'middle of the plow, thereby rendering guiding easy.

, Another andifurther important object of the invention is to provide in a snow plow a mold board fashioned with an angular curving surface so as to eliminate frictionto a great extent, the mold board itself having in co-operation therewith a pick-up or scraper blade. whichis adjustable within certain desired heights from the roadway or street level." f

Another and still further'important object of the invention is the provisionin a highway snow plow which is tractor operatedof transporting wheels whichniay be manually. set to remove the weight from the plow run.- ners, these transporting Wheels adapted particularly for use when the plow is not in actualsnow clearing operation. H

Other-and further important objects of the invention will be apparent from the'disclosures in the accompanying drawings and fol lowing specification.

The invention, in a preferredform, is illustrated in the drawings and hereinafter more fully described. j

In the drawings: I

Figure 1 is a top plan view of the improved tractor snow plow of this invention.

a Figure 2 is a detail sectional View of the adjustable scraper blade. -j V v Figure 3-is a side elevation of the plow while in operation. f V

a Figure 4 is a detail view illustrating the construction and operationof the transport ing wheels.

propelled by or oper- 930. Serial Nb. 443,355. r

Figure 5 is asection of thefriction reduoing mold board.

As shown in the drawings: I i

The reference'numerals indicate generally. themold boards of the improved. snow plow of this invention, the same being preferably'of metal and fashionedin an angular curve as best shown in Figures 1 and 5, and joined at the front to form asharp penetrating point or apex. The mold boards themselves arereinforced and separated by solid upright'backs 12 of planking or the like, thesebacks being angularly positioned upon the rear V shaped edgesof a scraper board 1 or the like 14 which extends completely across the width of'the plow, this width being variable within certain desirable limits. The forward edge of the scraper board is fitted with a scr'aper blade 16 having a relatively sharp penetrating edge and mounted on the metal runners18, the blade itself being ad- I j ustable by means of the fact that its securing screws 20 are'positioned in the slots 23 formed in the blade as bestshown in Figures 1 and 2." Therefore, when the edge of the blade be comes worndown, it may be moved forwardly, and likewise the effective edge of the blade may be raised or loweredwith respect to the road level asdesired. p

The mold boards, scraper boards, and the like are positioned upon two main push-bars 22 which extend the complete length of the plow, and there is also a third or middle reinforcing push-bar 24 asbest shown in Figure 1. Around this push-bar and across the two main push-bars 22 is built a platform or the like 26 as best shownin Figure 1, which extends for a certain distance back of theprow of the plow.

As best shown in Figures 1 and 3, a tractor or the like 30 is adapted to be placed inside the plow between the main push-bars 22, and the draw-bar 32 of the tractor may behitched by suitable or convenient means to a rear cross-bar 34iwliich forms partof the plow and connects the rear ends of the two main push bars 22. For the purpose of proper guidance, the front of the tractor is connectedby means of guide chains 36 to staples or the like 38 fastened in proper position b 1:;

into contact with hind the mold boards 10 and at about the middle of the plows length so as to afford proper guidance.

The mold boards 10 are themselves extended into projecting wings or the like 40 which extend for a suitable distance beyond the side edges of the plow and are reinforced and maintained in position by means of brackets or braces 42. This acts to throw the snow completely out of the path of the tractor, thereby leaving a clear space for operation-of the tractor treads.

In order that the push-bars of the plow may transferred from place to place, a set of wheels is provided, these wheels being mounted upon an axle 52 which is offset as best shown in Figure 4, the offset ends being positioned in suitable bearings 54: or the like mounted on the push-bars, and one end of the axle projects outwardly beyond the push-bar 22, and is bent into a crank shape as illustrated at 56, the end of the crank being pivotally connected to a link 58, the other end of which is mounted on an operating lever whereby the Wheels maybe dropped down the ground, thereby raising the forward end of the plow from the road. a V, c

It willfb'e evident that herein is provided a tractor driven highway snow plow which embodies many improvements over the types now in use; The plow itself can be powered by any make of tractor, as it is readily adaptable for suitable connections therewith, and the angular curvature or shaping of the mold board results in theleast tional contact between the snow and the surface of the board itself, while atrthe same time effectively removingthe same to the side of the road and without any danger of the snow becoming piled up on the mold board itself or underneath the same.

I am aware that many changes may be made and numerous details of construction varied throughout a wide range without departing from the principles of this invention, and I, therefore, do not purpose limiting the patent granted hereon otherwise than as necessitated by the prior art. I claim as my invention: l. A snow plow, including a pair of angularly positioned concavely curved ,mold

' boards, the mold boards being joined at their forward ends and separated at their rear ends to form a snow penetrating and dividing prow, and a scraper board mounted beneath the mold board assembly and extending transversely across the forward end of same to a. width of approximately two-thirds of the total distance separating the rear ends of the moldboards, together with an adjustable scraper blade mounted on the forward end of the scraper board, runners for" the possible fric-' guide chains mounted on the mold boards adjacent their middles.

, 2. A snow plow, including a pair of angularly positioned concavely curved mold boards, the mold boards being joined at their forward ends and separated at their rear ends to forma snow .penerating and dividing prow, and a scraper board mounted ben'eath' the mold board assembly and extending transversely across the forward end of same to a'width o'fapproximately two-thirds g of the total distance separating the rear ends of the mold boards, together with an adjustable scrape blade mounted on the forward'e nd of the scraper board, runners for the scraper board, and push-bars supporting the assembled mold'boards, scraper board and scraper blade, and a-hitch bar connecting'therear ends of the push-bars, together with guide chains mounted on the moldboards adjacent their middles, the hitch bar including means for'conne'ction to the draw bar of a. tractor, and the guide chains including'nleans for connection to the central front end o'f'the tractor. v V 1' 3. A snow plow, including a pair of angularly positioned concavely curved mold boards, t iemold boards being joined at their forward ends and separated at their rear ends to form a snow penerating and dividing prow, and a scraper board mounted beneath the mold board assembly and extending transverselyacross the forward end of same to a width of approximately two-thirds of the total distance separating the rear ends of the mold boards, together with an adjustable scraper blade mounted on the forward end of the scraper board, runners for the scraper board, and push-bars supporting the assembled mold boards, scraper board andscraperblade, and .a hitch barconnecting the rear ends of the push-bars, together with guide chains mounted on the mold boards adjacent their middles, the hitch bar including means for connection to the draw bar'of a tractor," and the guide chains including means for connection to the central front end of the tractor, and a set of supporting wheels for t'ransporting the plow when not in snow clearing'operation.

4. A snow plow, gularly positioned concavely curved mold boards, the mold boards being joined at their forward ends and separated at their rear ends to form a snow penetrating and dividing prow, and a scraper board mounted be-' neath the mold board assembly and extending transversely across the for-ward end of same to a width of approximately two-thirds of the total distance separatingthe rear ends of the mold boards, together with an adj ustincluding a pair of anable scraper blade mounted on the forward end of the scraper board, runners for the scraper board, and push-barssupporting the assembled mold boards, scraper board and scraper blade, and a hitch bar connecting the rear ends of the push-bars, together with guide chains mounted on the mold boards adjacent their middles, the hitch bar including means for connection to the draw bar of a tractor, and the guide chains including means for connection to the central front end of the tractor, and a set of supporting wheels for transporting the plow when not in snow clearing operation, and means for manually shifting said wheels into and out of plow supporting position.

In testimony whereof I afiix my signature.

CHARLES A. MILHON. 

